Nissan Frontier D22. Manual - part 327

DTC P0510 CTP SWITCH

EC-411

[KA24DE]

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3. 

CHECK INPUT SIGNAL CIRCUIT

1.

Turn ignition switch “OFF”.

2.

Disconnect ECM harness connector.

3.

Check harness continuity between ECM terminal 28 and terminal 6.
Refer to Wiring Diagram.

4.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 4.

4. 

DETECT MALFUNCTIONING PART

Check the harness for open or short between throttle position switch and ECM.

>> Repair open circuit or short to ground or short to power in harness or connectors.

5. 

ADJUST THROTTLE POSITION SWITCH IDLE POSITION

Check the following items. Refer to 

EC-74, "Basic Inspection"

 .

>> GO TO 6.

Continuity should exist.

Items

Specifications

Ignition timing

20

° ± 2° BTDC

Base idle speed

750 

± 50 rpm (in P or N position)

Closed throttle position switch 
idle position adjustment

Feeler gauge thickness and switch condition
0.1 mm (0.004 in): ON
0.3 mm (0.012 in): OFF

Target idle speed

800 

± 50 rpm (in P or N position)

EC-412

[KA24DE]

DTC P0510 CTP SWITCH

6. 

CHECK CLOSED THROTTLE POSITION SWITCH

 With CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Stop engine and turn ignition switch “ON”.

3.

Select “DATA MONITOR” mode with CONSULT-II.

4.

Check indication of “CLSD THL/P SW” under the following conditions.

NOTE:
Measurement must be made with closed throttle position switch installed in vehicle.
If NG, adjust closed throttle position switch. Refer to 

EC-74, "Basic Inspection"

 .

5.

If it is impossible to adjust closed throttle position switch in “Basic Inspection”, replace closed throttle posi-
tion switch.

 Without CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Turn ignition switch “OFF”.

3.

Disconnect throttle position switch harness connector.

4.

Check continuity between terminals 5 and 6 under the following conditions.

NOTE:
Continuity measurement must be made with closed throttle
position switch installed in vehicle.
If NG, adjust closed throttle position switch. Refer to 

EC-74,

"Basic Inspection"

 .

5.

If it is impossible to adjust closed throttle position switch in
“Basic Inspection”, replace closed throttle position switch.

OK or NG

OK

>> GO TO 7.

NG

>> Replace throttle position switch.

Throttle valve conditions

Continuity

Completely closed

Yes

Partially open or completely open

No

SEF721Z

SEF159S

DTC P0510 CTP SWITCH

EC-413

[KA24DE]

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EC

7. 

CHECK THROTTLE POSITION SENSOR

 With CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Stop engine and turn ignition switch ON.

3.

Select “DATA MONITOR” mode with CONSULT-II.

4.

Check voltage of “THRTL POS SEN” under the following condi-
tions.

NOTE:
Voltage measurement must be made with throttle position
sensor installed in vehicle.
If NG, adjust closed throttle position switch. Refer to 

EC-74,

"Basic Inspection"

 .

5.

If it is impossible to adjust closed throttle position switch in
“Basic Inspection”, replace throttle position sensor.

 Without CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Stop engine and turn ignition switch ON.

3.

Check voltage between ECM terminal 23 (Throttle position sen-
sor signal) and ground under the following conditions.

NOTE:
Voltage measurement must be made with throttle position
sensor installed in vehicle.
If NG, adjust closed throttle position switch. Refer to 

EC-74,

"Basic Inspection"

 .

4.

If it is impossible to adjust closed throttle position switch in “Basic Inspection”, replace throttle position
sensor.

OK or NG

OK

>> GO TO 8.

NG

>> Replace throttle position sensor.

8. 

CHECK INTERMITTENT INCIDENT

Perform 

EC-120, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END.

Throttle valve conditions

Voltage [V]

Completely closed

0.2 - 0.8 (a)

Partially open

Between (a) and (b)

Completely open

3.5 - 4.5 (b)

SEF198Y

SEF767W

EC-414

[KA24DE]

DTC P0605 ECM

DTC P0605 ECM

PFP:23710

Component Description

UBS00D9K

The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.

On Board Diagnosis Logic

UBS00D9L

DTC Confirmation Procedure

UBS00D9M

NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 5 seconds before conducting the next test.

 WITH CONSULT-II

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Start engine.

4.

Run engine for at least 30 seconds at idle speed.

5.

If 1st trip DTC is detected, go to 

EC-415, "Diagnostic Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-II”.

SEC220B

DTC No.

Trouble Diagnosis Name

DTC Detecting Condition

Possible Cause

P0605

ECM

ECM calculation function is malfunctioning.

●

ECM

SEF058Y